From owner-freebsd-current Mon Jan 21 22:12:20 2002 Delivered-To: freebsd-current@freebsd.org Received: from panzer.kdm.org (panzer.kdm.org [216.160.178.169]) by hub.freebsd.org (Postfix) with ESMTP id DC04637B404 for ; Mon, 21 Jan 2002 22:12:14 -0800 (PST) Received: (from ken@localhost) by panzer.kdm.org (8.11.6/8.9.1) id g0M6C1V64590; Mon, 21 Jan 2002 23:12:01 -0700 (MST) (envelope-from ken) Date: Mon, 21 Jan 2002 23:12:01 -0700 From: "Kenneth D. Merry" To: "Samuel J.Greear" Cc: current@FreeBSD.org Subject: Re: making a large RAMdisk? Message-ID: <20020121231201.A64554@panzer.kdm.org> References: <20020121222038.A64090@panzer.kdm.org> <20020122052400.4790A2109B@ns1.infowest.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2i In-Reply-To: <20020122052400.4790A2109B@ns1.infowest.com>; from dragonk@evilcode.net on Tue, Jan 22, 2002 at 10:18:51PM -0700 Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Tue, Jan 22, 2002 at 22:18:51 -0700, Samuel J.Greear wrote: > On Monday 21 January 2002 10:20 pm, Kenneth D. Merry wrote: > > I've got a machine with 4G of RAM, and I'm trying to test all the RAM out > > to make sure it's okay. > > > > I've tried doing buildworlds, but never end up using more than 1G of RAM on > > cache, etc. > > > > I've got -current and -stable on it, and I've tried making an MFS > > filesystem under -stable. I can't seem to get more than a 512M MFS > > filesystem allocated under -stable. (I've got two 2G swap partitions.) > > > > I tried using md to make a swap-backed filesystem under -current, but the > > problem is that it actually seems to back it with swap. (pstat -s shows > > disk space used, unlike MFS under -stable) > > > > Is there a way, under -current or -stable, to make a true RAMdisk that is > > around 2GB in size? > > > > Ken > > > If all you want to do is test the RAM: > http://www.teresaudio.com/memtest86/ > (download the Windows version and use > dd to put the binary on a floppy) Thanks for the pointer. Unfortunately it doesn't work with more than 2G of RAM. (The test just hangs up, numlock doesn't work, keyboard input doesn't seem to do anything.) > As far as your other questions, well .... For the archives, Paul Saab pointed out that I need to increase MAXDSIZ. That did the trick, and I now have a ~2G MFS partition: (on -stable) {nargothrond:/usr/home/ken:62:0} df -k /mnt Filesystem 1K-blocks Used Avail Capacity Mounted on mfs:340 2015918 604986 1249660 33% /mnt Ken -- Kenneth Merry ken@kdm.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message